ground shredded chipped wood chips used as biomass solid fuel, raw material for producing wood pulp, organic mulch in gardening,

agricultural agriculture alternative background bark biofuel biomass bioreactor chipped chipper chipping chips cut ecology energy environment farm fuel garden gardening green ground heat landscaping logging lumber material mulch natural nature organic pulp raw recycle recycling residual residue rough saw sawmill shaving shredded solid substrate surface texture timber waste wood woodchips